/**
 * @projectName: com.xiayuanxing.designPattern
 * @className: QuackBehavior
 * @author: xiayuanxing
 * @description: TODO
 * @date: 2022/2/11 11:06
 * @version: 1.0
 */
public interface QuackBehavior {


    void quack();//子类去实现
}
